Boiler cleaner



Oct. 3, 1933. F. COOLING ET AL BOILER CLEANER Filed May 19, 1950 ATTORN EYS Patented Oct. 3, 1933 .nonnn CLEANER Cooling, Chicago, Ill, and. Samuel F. Cox, Detroit, Mich, assignors 't'o Diamond Bower Specialty Corporation,

ration of Michigan Detroit, Mich; a corpo- 19,'19so. SerialQNo. 453,158

4 Claims. (Cl. 122-392) invention relates to boiler cleaners and has particular reference to a boiler cleaner of the character in whicha blower element is adapted to. direct :jets of cleaning fluid adjacent portions of the boiler vto be cleaned. v v One of tbeobjects of this invention is to provide an improved form :of bearing bracket for the blowerelement whereby the blower element may besupportediadjacent the portions of the-boiler to be cleaned.

The: invention further contemplates the provision .ofa bearing bracket formed of separable sections whereby upon disassembly of the bearing bracket the blower element may be easily removed for the purposes of repair or replacement.

Other objects and advantages of the invention. togetherwith the numerous novel'details of mstrmtim thereof, will become more apparent as, the following description proceeds, particularly when reference is had drawing wherein: V

"Figure l is anelevational view partly in section showing the mounting of a boiler cleaner in a boiler sett Figure2 isa sectional view taken substantially :onthe line2'--'2.ofFigure I. 1

Figure 3 is asectional view taken substantially m theline 3--3 of Figure 2.

Figure isa. detail elevational view of a portion ofthe. structure shown in Figure 2; and r .5 isI-an end elevational view of the structure shown in Figure 4; I

In practice it has been found that the most satisfactory way to support a'blower element of a boiler cleaner adjacent the surfaces: of the boiler to be cleaned i's'to weld a bearing bracket for the. blower element to. the adjacent boiler surfaces. "By axing the bearing bracket to the boiler surfaces or the like, the bearing bracket is prevented from movement regardless of the inclination oil the boiler surfaces and the blower element is thus maintained in fixed relation to the surfaces to be cleaned. It frequently hap pens, however, that a bearing bracket welded entirely to the boiler surfaces cannot be used because the space'between boilers is not suflicient to permit an um withdrawing of the blower element from the bearing brackets. The present invention therefore contemplates the provision of a bearing bracket which includes a portion welded or otherwise fixed to the boiler part and to the accompanying a second portion detachably connected to the first I portion so that the bearing bracket may be disassembled to permit a removal of the blower element from the bearing bracket by a lateral rather than an axial movement of the blower element.

Referring then particularly to the drawing wherein like reference characters designate corresponding parts throughout all views, there is shown in Figure 1 a boiler cleaner mounted in a boiler setting in a position to discharge cleaning fluid adjacent the portions of the boiler to be cleaned. In' this figure the reference character designates a boiler wall provided with an opening 11 through which a blower element 12 extends. This blower element is provided with discharge nozzles 13 adapted to direct jets of cleaning fluid'adjac'ent portions of the boiler to be cleaned, such, for examplefas the boiler tubes 14.

Exteriorly of the boiler wall the blower element is rotatably journaled in a blower-head designated generally bythe reference character 15. This head includes a gooseneck '16 forming a connection between the cleaning fluid supply pipe 1'7 and the blower element and a suitable actuating mechanism for rotating the blower element which ineludes agear 18 fixed to the blower element, this gear being engaged by a pinion 19 rotatablewith a sheave wheel 20. A valve 21 is preferably provided for controlling the flowof cleaning fluid from the supply pipe to the blower element and this 'valve'i's' actuated in timed relation to the rota,- tion of the blower element by means of a lever 22 which'is engaged by a cam 23 rotatable with -the blower element. The structure of the blower head and the actuating mechanismfor the blower element and valve form no part of this invention and are disclosed merely for the purpose of illustrating the manner inwhich'the'blower element is supplied with cleaning fluid and is rotated for directing the jets'of cleaning fluid adjacent the 'portions'of the boiler to be cleaned.

'As illustrated, the blower element extends adjacent the portions of .the boiler to becleaned, such, for. example, as the boiler tubes 14, and to provide means for supporting the blower element from these tubes, suitable bearing brackets designated generally by the reference character25 are provided. By reference to Figure 1 of the drawing, it notedthat the bearing brackets are shown as secured to the boiler tubes 14, but it is to be clearly understood that the bearing brackets may be secured to any portion of the boiler adjacent which the blower element extends.

Each bearing bracket includes a loop member 26 provided with the end portions 27, each of which is formed with an opening 28. The loop member is curved, as clearly illustrated in Figure 2 of the drawing, to embrace the blower element 12 and to constitute a bearing for the same.

Each bearing also includes a pair of lugs or anchor members 29 and each lug comprises a plate- 5 like member provided with an aperture 30 and provided with a lower edge 31 which is formed on its ends with the bearing portions 32 curved, as clearly illustrated in Figure'5 of the drawing, to seat on the boiler tube 14. Intermediate the bearing portions 32, the edge 31 is beveled as indicated at 33 to facilitate welding of this portion of each lug to the boiler tube.

I n assembling the bearing bracket, the lugs 27 may be set up on the boiler tube, the spaced bearing portions 32 providing means for holding the lugs in correct position. The lugs are then welded to the boiler tube as indicated at 34, the beveled portions of the lugs facilitating a thorough bonding of the lugs to the tube. With the lugs fixed to the boiler tube the correct distance apart, theloop member 26 is detachablysecured to the lugs by bolts 35 which pass through the openings 28 and 30 in the loop member and lugs respectively, these bolts being held in position by the nuts 36. Thus, the loop member is detachably secured to the lugs 29 and these lugs are in turn fixed to the boiler tube or boiler part by welding.

From the above it is believed that the structure and operation of the invention will be clearly apparent. The loop members, detachably secured to the lugs which inturn are fixed to the boiler part, constitute bearing brackets for supporting the blower element adjacent the parts of the boiler to be cleaned. Whenever it is desired to remove the blower element for the purpose of replacement or repair, the bolts 35 may be removed and the loop member detached from the lugs, permitting movement of the blower element out of the loop member. Thus, the invention provides means for supporting the blower element adjacent the surfaces of the boiler to be cleaned while permitting ready removal of .the blower element by a disassembly of thelbearing bracket. By the term boiler surfaces", as used herein, is meant the heat transfer surfaces of the boiler. The heat transfer surfaces, as is understood, are those surfaces which are contacted by the heating fiuid, and which absorb heat therefrom for transmission to a second fluid to beheated. f

While the boiler tubes in Figure 1 are shown as beinghorizontally arranged with the bear ing bracketsrabove the tubes, it is to be clearly understood that the bearing brackets may, if desired, be fixed to the under sides of the boiler tubes, in which event the blowerelement will be suspended from the boiler tubes. Further, the boiler tubes may beinclined, as is customary in certain types of boilers, in which event thebearing brackets will be arrangedat a angle to the horizontal. In'everycase, however, the bearing brackets will be prevented from movement rela= tive to the boiler tubes regardless of the angle of inclination of-the -boiler tubes so that the blower elements will be supported at fixed pointswith reference to the portions of the boiler'to be cleaned. r v

While the invention has been described with considerable detail, it is to be clearly understood that the description is for the purpose of illustration only and is not definitive of the limits of the inventive idea. The right is therefore reserved to make such changes in the details of construction and arrangement ofv parts as will fall within the "purview of the attached claims. For the sake of convenience, the invention has been described as being embodied in a bearing for supporting a boiler cleaner within a boiler. It will be apparent, however, that the inventive principles disclosed may be utilized for supporting a cleaner in any similar type of apparatus, and it is to be, therefore, understood that the term boiljer wherever used in the specification or claims is'to be construed as meaning a heat transfer apparatus or fluid heater of any character, while posite sides of said blower element, and a loop member detachably fastened to said lugs and partially surrounding said blower element.

2. The combination with a boiler surface and a blower element adjacent said surface, of means for supporting the blower element from the boiler surface and for restraining the blower element from movementin all directions with respect to said surface comprising two separate members, each member being positioned and welded to the boiler surface on opposite sides of the blower element and a U-shaped member detachably secured to said members and cooperating with the boiler surface to completely surround the blower element.v

3. The combination with a boiler tube and a blower element extending transversely of said boiler tube, of means extending longitudinally of said tube, for supporting said element therefrom and for restraining said element from movement in all directions with respect thereto, said means comprising three separate members, two of which are'positioned and welded to the boiler tube on opposite sides of the blower element and the third of which partially surrounds the blower element and is detachably secured to said welded memhers. I

4. The combination with a boiler tube and a blower element adjacent said tube, of means for restraining said blower element from movement with respect to said tube comprising two separate lugs, each lug being positioned and welded to said boiler tube on opposite sides of said element and a loop member removably secured to said lugs and co-operating with said boiler tube to surround the blower element, the arrangement being such that upon removal of said loop member from said lugs the element may be moved from adjacent said boiler tube. V

LOUIS F. .CYOOLING. SAMUEL F. cox. 

